<template>
  <div>
    <form action="" >
      <td v-for="(item,index) in arr" :key='index'>
      <input type="checkbox"  v-model="check" :value='item'>{{item}}
      </td>
    </form>
    <p>你选中的元素，累加的值和为{{ allPrice }}</p>
   </div>
</template>
 
<script>
export default {
  name: "",
  components: {},
  props: {},
  data() {
    return {
      arr:[9, 15, 19, 25, 29, 31, 48, 57, 62, 79, 87],
      check:[]
    };
  },
  computed: {
    allPrice(){
      return this.check.reduce((sum,item) => sum += item  ,0)
    }
  },
  watch: {},
  created() {},
  methods: {}
};
</script>

<style scoped>
     
</style>